Selective catalytic reduction of NO with NH<sub>3</sub> over activated carbon impregnated with melamine at low temperature

LI Qiao-yan; HOU Ya-qin; HAN Xiao-jin; HUANG Zhang-gen; GUO Qian-qian; SUN De-kui; LIU Jian-dong

Volume 42 Issue 04

Apr. 2014

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Article Navigation > Journal of Fuel Chemistry and Technology > 2014 > 42(04): 487-493

LI Qiao-yan, HOU Ya-qin, HAN Xiao-jin, HUANG Zhang-gen, GUO Qian-qian, SUN De-kui, LIU Jian-dong. Selective catalytic reduction of NO with NH3 over activated carbon impregnated with melamine at low temperature[J]. Journal of Fuel Chemistry and Technology, 2014, 42(04): 487-493.

Citation:

LI Qiao-yan, HOU Ya-qin, HAN Xiao-jin, HUANG Zhang-gen, GUO Qian-qian, SUN De-kui, LIU Jian-dong. Selective catalytic reduction of NO with NH₃ over activated carbon impregnated with melamine at low temperature[J]. Journal of Fuel Chemistry and Technology, 2014, 42(04): 487-493.

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Selective catalytic reduction of NO with NH₃ over activated carbon impregnated with melamine at low temperature

1.
State key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China;
2.
University of Chinese Academy of Sciences, Beijing 100049, China;
3.
Taiyuan University of Technology, Taiyuan 030024, China

Received Date: 2013-12-02
Rev Recd Date: 2014-02-09
Publish Date: 2014-04-30

Abstract

Abstract

N-doped activated carbons (ACM) was obtained by impregnated activated carbon (AC) with melamine (M). The relationship between the impregnated time and calcination temperature on the nitrogen content and NH₃-SCR activity was investigated. Results showed that SCR activity of ACM was higher than original AC. For ACM-5-900 was about 51.67% at 80 ℃ while AC was about 21.92%. Characterizations of BET, element analysis and XPS were employed to study the structural properties, nitrogen contents and distribution of nitrogen-containing groups of ACM. Results indicated that NO conversion of ACM was influenced by the form of nitrogen-containing functional groups rather than the nitrogen content. The NO+O₂-TPD revealed that nitrogen-containing surface groups of ACM facilitated the adsorption and oxidation of NO, leading to the higher NO conversion. However, SO₂ played an inhibit role on NO conversion of ACM.
- DeNO_x,
- activated carbon,
- SCR,
- N-containing groups

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References(25)

References

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